|This article does not cite any references or sources. (November 2012)|
|Traded as||NASDAQ: STLD|
|Headquarters||Fort Wayne, Indiana, United States|
|Key people||President & CEO Mark Millett|
|Revenue||8.1 billion USD (2008)|
Steel Dynamics, Inc. (SDI) is a steel producer based in Fort Wayne, Indiana and the fifth largest producer of carbon steel products in United States. Over sixty percent of the company’s steel shipments are flat-rolled sheet steel and the remainder is "long products" (bars and beams) and fabricated products. SDI is among the most profitable American steel companies in terms of profit margins and operating profit per ton.
SDI was founded in 1993 and began production at its Butler, Indiana, Flat Roll Mill in 1996. The Flat Roll Division’s finishing facilities at Butler and at Jeffersonville, Indiana, produce pickled, cold-rolled, galvanized, and painted flat-roll steel.
In 2007 SDI acquired The Techs, three galvanizing plants in Pittsburgh that coat flat-rolled steel.
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